Airplanes and Rockets' history & copyright Google search American Modeler Air Trails American Aircraft Modeler Young Men Hobbies Aviation Flying Aces Saturday Evening Post Boys' Life Hobby Distributors Amateur Astronomy Engines & Motors Balsa Densities Silkspan Covering Comics Electronics My Models Model Aircraft Articles Plans Model Boat Articles Plans Model Car Articles Plans Model Train Articles Plans 1941 Crosley 03CB Radio Model helicopter articles & plans Crosswords Model Rocket Articles Plans Restoration Projects Photos Peanuts Collection Model Aircraft Articles Plans Sitemap Homepage Hints and Kinks Amateur Radio Archives of the homepage R/C Modeler Electronics About Airpleans and Rockest, Disclaimer, Terms of Use Model Topics Please Donate to Airplanes and Rockets Parole Plaza, Annapolis, Maryland Hobby Items for Sale Airplanes and Rockets Hero Graphic

Drones - Airplanes and Rockets

Model Aviation Magazine, AMA - Airplanes and Rockets

Battery Connector Usage Chart: Model Aircraft, Boats & Cars

There are many high quality types of connectors available nowadays for use with battery packs for model airplanes, helicopters, boats, and cars. A wide range of current handling capacities are required depending on the demands of electric power setups. Smaller park flyer types only might need connectors and wires that can handle 10 amps, whereas larger scale models and 3D helicopters can easily need more than 100 amps for acceptable performance. Connector failure is often the culprit in crashes due to inappropriate contact ratings. It is well worth your investment in time to research and implement proper connector usage considering the time and money invested in your model.

Specifications used for the following table were obtained from the suppliers. When making your selection, always add in a safety margin of at least 10%. For example if your application will draw a continuous current of 55 amps, then it would be best to use a connector rated at 60 amps or greater. Note: Connector images are not to scale.





Wire Size


Castle Creations 4 mm & 6.5 mm Connectors - Airplanes and Rockets

Castle 4mm & 6.5mm

75 A

200 A

13 AWG


e-flite EC3 Battery Connector - Airplanes and Rockets

E-flite EC3 & EC5

60 A

120 A

12 AWG

10 AWG

Deans Ultra Connectors - Airplanes and Rockets

Deans Ultra

50 A

12 AWG

Sermos Power Pole Connectors

Sermos Power Poles


15 A

30 A,

45 A

13 AWG

13 AWG

13 AWG

HXT 4 mm & 6 mm Connectors - Airplanes and Rockets 

HXT 4mm & 6mm

70 A

12 AWG

JST Connectors - Airplanes and Rockets


8 A

20 AWG

XT-60 Connector - Airplanes and Rockets


65 A

12 AWG

Caveat: Be careful when buying these connectors from unknown discount suppliers because often they are cheaply constructed imitations that will not hold up to operational conditions claimed by the original manufacturers.



Posted June 28, 2015

About Airplanes & Rockets 

Kirt Blattenberger, Webmaster - Airplanes and RocketsKirt Blattenberger

Carpe Diem! (Seize the Day!)

Even during the busiest times of my life I have endeavored to maintain some form of model building activity. This site has been created to help me chronicle my journey through a lifelong involvement in model aviation, which all began in Mayo, MD ...

Copyright  1996 - 2026

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the Airplanes and Rockets website are hereby acknowledged.


Kirt Blattenberger


Family Websites:

RF Cafe

Equine Kingdom

Model Aircraft Museum, AMA - Airplanes and Rockets

Plastic Scale Model Kits - Airplanes and Rockets

Rocket Kits + Accessories - Airplanes and Rockets

Academy of Model Aeronautics (AMA) - Airplanes and Rockets

Academy of Model Aeronautics

Tower Hobbies logo - Airplanes and Rockets

Tower Hobbies

Horizon Hobby logo - Airplanes and Rockets

Horizon Hobby

Sig Manufacturing - Airplanes and Rockets

Sig Mfg

Brodak Manufacturing - Airplanes and Rockets

Brodak Mfg